> ## Documentation Index > Fetch the complete documentation index at: https://docs.illuminalab.com/llms.txt > Use this file to discover all available pages before exploring further. # Get thread messages > Get all messages for a thread. Returns all message parts without filtering, including reasoning and internal tool calls. Use /public-messages for filtered output. ## OpenAPI ````yaml openapi.json get /v1/resources/{resourceId}/threads/{threadId}/messages openapi: 3.1.0 info: title: Illumina Lab API description: AI-powered workflow orchestration API for building AI applications. version: 0.1.0 servers: - url: https://api.illuminalab.com security: [] tags: - name: workflow description: Workflow execution endpoints for running AI conversations - name: resources description: Resource and thread management within specific resources - name: threads description: Direct thread access endpoints for the authenticated team - name: feedback description: Endpoints for providing feedback on AI responses and conversations paths: /v1/resources/{resourceId}/threads/{threadId}/messages: get: tags: - resources summary: Get thread messages description: >- Get all messages for a thread. Returns all message parts without filtering, including reasoning and internal tool calls. Use /public-messages for filtered output. operationId: getV1ResourcesByResourceIdThreadsByThreadIdMessages parameters: - name: resourceId in: path required: true schema: type: string minLength: 10 description: Unique resource identifier - name: threadId in: path required: true schema: type: string format: uuid pattern: >- ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$ description: UUID of the thread - name: authorization in: header required: true schema: type: string pattern: ^Bearer [\s\S]{0,}$ responses: '200': description: Response for status 200 content: application/json: schema: $schema: https://json-schema.org/draft/2020-12/schema type: object properties: messages: type: array items: type: object properties: id: type: string description: UUID of the message thread_id: type: string description: UUID of the parent thread role: type: string description: Message role (user, assistant, system) parts: $ref: '#/components/schemas/AnyValue' description: Message parts array (JSON) metadata: $ref: '#/components/schemas/AnyValue' description: Message metadata (JSON object) anyOf: - anyOf: - type: string - type: number - type: boolean - type: 'null' - type: array items: $ref: '#/components/schemas/AnyValue' - type: object propertyNames: type: string additionalProperties: $ref: '#/components/schemas/AnyValue' created_at: anyOf: - type: string - type: 'null' description: ISO timestamp of creation required: - id - thread_id - role - parts - metadata - created_at additionalProperties: false description: >- Message object; follows the IlluminaUIMessage structure with some additional fields in the top level object description: Array of messages with all parts (unfiltered) total: type: number description: Total count of messages feedbacks: type: object propertyNames: type: string additionalProperties: type: object properties: sentiment: type: number comment: anyOf: - type: string - type: 'null' required: - sentiment - comment additionalProperties: false description: Map of message IDs to feedback data thread_feedback: anyOf: - type: object properties: sentiment: type: number comment: anyOf: - type: string - type: 'null' required: - sentiment - comment additionalProperties: false - type: 'null' description: >- Thread-level feedback (score 0-5 with optional comment), null if none exists required: - messages - total - feedbacks - thread_feedback additionalProperties: false '401': description: Error response following IlluminaError format content: application/json: schema: $schema: https://json-schema.org/draft/2020-12/schema type: object properties: error: type: object properties: code: type: string description: >- Error code in format 'type:surface' (e.g., 'not_found:database') message: type: string description: Human-readable error message details: description: Additional error context type: object propertyNames: type: string additionalProperties: $ref: '#/components/schemas/AnyValue' required: - code - message additionalProperties: false required: - error additionalProperties: false description: Error response following IlluminaError format '404': description: Error response following IlluminaError format content: application/json: schema: $schema: https://json-schema.org/draft/2020-12/schema type: object properties: error: type: object properties: code: type: string description: >- Error code in format 'type:surface' (e.g., 'not_found:database') message: type: string description: Human-readable error message details: description: Additional error context type: object propertyNames: type: string additionalProperties: $ref: '#/components/schemas/AnyValue' required: - code - message additionalProperties: false required: - error additionalProperties: false description: Error response following IlluminaError format '500': description: Error response following IlluminaError format content: application/json: schema: $schema: https://json-schema.org/draft/2020-12/schema type: object properties: error: type: object properties: code: type: string description: >- Error code in format 'type:surface' (e.g., 'not_found:database') message: type: string description: Human-readable error message details: description: Additional error context type: object propertyNames: type: string additionalProperties: $ref: '#/components/schemas/AnyValue' required: - code - message additionalProperties: false required: - error additionalProperties: false description: Error response following IlluminaError format components: schemas: AnyValue: description: JSON-compatible value anyOf: - anyOf: - type: string - type: number - type: boolean - type: 'null' - type: array items: $ref: '#/components/schemas/AnyValue' - type: object propertyNames: type: string additionalProperties: $ref: '#/components/schemas/AnyValue' ````